Is there a quicker way than the following to 'flip' a true or false to its opposite state?
是否有一种比下面的方法更快的方法来“翻转”对其相反状态的真或假?
if x == true
x = false;
else
x = true;
end
Yes, perhaps only five lines of code is nothing to worry about but something that looks more like this would be fantastic:
是的，也许只有五行代码没什么好担心的，但是看起来更像这样的代码会很棒:
x = flip(x);
3 个解决方案
#1
16
You could do the following:
你可以这样做:
x = ~x;
#2
6
u can use negation statement. I cant remember how it works in matlab, but i think is something like
你可以用否定命题。我不记得它在matlab中是如何工作的，但我认为是这样的。
x = ~x;
#3
6
Franck's answer is better (using ~), but I just wanted to point out that the conditional in yours is slightly redundant. It's easy to forget that, since you already have a boolean value, you don't need to perform a comparison in your conditional. So you could have just done this...
Franck的答案更好(用~)，但我只是想指出，你的条件有点多余。很容易忘记，因为您已经有了一个布尔值，所以您不需要对条件进行比较。所以你可以这样做…
if x
x = false;
else
x = true;
end
#1
16
You could do the following:
你可以这样做:
x = ~x;
#2
6
u can use negation statement. I cant remember how it works in matlab, but i think is something like
你可以用否定命题。我不记得它在matlab中是如何工作的，但我认为是这样的。
x = ~x;
#3
6
Franck's answer is better (using ~), but I just wanted to point out that the conditional in yours is slightly redundant. It's easy to forget that, since you already have a boolean value, you don't need to perform a comparison in your conditional. So you could have just done this...
Franck的答案更好(用~)，但我只是想指出，你的条件有点多余。很容易忘记，因为您已经有了一个布尔值，所以您不需要对条件进行比较。所以你可以这样做…
if x
x = false;
else
x = true;
end